Archive Settings

As illustrated in the archiving section of Camera Setup, the Archive Settings define the format and target parameters of recording video per camera. Within the setting there is the ability to adjust the archive write type, the recording frame rate, the motion sensitivity, and also mask areas for camera date/time on-screen display overlays.

Several sample archive settings are defined for selection in the default database.  These options include common settings for Motion-JPEG archiving (listed as FPS - FSAL), as well as selections for Image and Video types. Finally, there are default settings for CONTINUOUS - FPS which record regardless of motion thereby continuously, at the defined Frame rate (per second).

Any of these default settings may be copied as a template to modify a slight adjustment needed in motion sensitivity or Frames per Second. New settings can be added from scratch as well. The selection criteria for adding a new setting are listed and shown here below.

The Type field allows for selecting the method in which the video data stream will be written-to or recorded within the file system.

• Image - allows for continuous writing of streamed video in a series of direct .jpg files as defined by selectable frame rate regardless of motion. Often times used as time-lapse recording.
• FSAL - allows for writing of streamed video in a motion-jpeg codec within our File System Archiving Library predicated upon motion settings and frame rate
• Video - allows for continuous writing of streamed video in a h.264 codec with a .MP4 video format as defined by selectable frame rate regardless of motion. This type is required for synchronized video and audio recording.

The motion sensitivity select list is populated with values defined within the Administration Settings for Motion Sensitivity. The default values are High, Low, Medium, Medium - High and Medium-Low. This setting is pertinent when selecting the FSAL type (mentioned above).

Frame rate defines the amount of video that will be captured during a defined interval. For FSAL and Video types this is defined as Frames per Seconds (FPS). For Image this value is further selectable based on Frames per Second or per Hour. As a note, most general surveillance applications record at 5-7 FPS. Full motion (or real-time video) is typically standardized between 24 and 30 FPS. While casinos or machine processing applications with a need for capturing the slightest movements over time may choose to record at 60 - 100 FPS.  The trade off in increased frames recorded (increased video data) is a limitation in overall storage demand or capacity.  This means that every second of recording at 60 FPS is 12-times greater in storage required than the same recording at 5 FPS.

The Overlay height (both top and bottom) define the number of pixels that will be masked (excluded) from motion detection. The purpose is to avoid motion-detection recording an embedded on-screen display (overlay) of a ticking date/time delivered within the camera stream by the camera manufacturer.

 

Next Topic: Archive Locks